Simple Shift is the latest breakthrough in electronic overdrive transmission control. No laptops or expensive technicians are required to completely control shift points, shift firmness, and torque converter lockup. All parameters are simply adjusted with easy-to-use dials on the end of the Simple Shift unit. Complete control of how and when your transmission shifts is at your fingertips. Included are complete diagnostic capabilities communicated via simple flashing LED's that can tell you what gear you're in, and whether or not your torque converter is locked up.